<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.css" rel="stylesheet">

</head>
<body>
    <div id="app"></div>
    <script src="bundle.js"></script>
</body>
</html>